Need Help with Paulson Blue ID using UV light (2 Viewers)

[Colquhoun]

I have a bunch of older blue LCV Paulsons that used to be hotstamps that I made HSI fracs.
They are an unidentified blue. The Paulson medium blues are notorious for being tough to ID especially as they age. When I purchased them, there was a question if they were Light Blue, Bahama Blue, Ocean Blue or even Horizon.

I discovered that this particular chip (and a few other samples like Whiskey Pete’s) look quite peculiar under UV light. While most blues get brighter and glow, these turn a dark, dull purple.

So, can anyone that has a Paulson color sample set and a UV light (or flashlight) check and see which color is the one that makes a blue chip turn a dark, dull purple?

I think this would also help with future ID of certain blue Paulsons.
Many thanks!

 

[QueYo]

My Horseshoe frac is a Paris $1, and it also gives a pale purple color under black light. I took some pictures but the colors don't really come across. The blue in particular seems to get muted by my phone.

 

[Colquhoun]

My Horseshoe frac is a Paris $1, and it also gives a pale purple color under black light. I took some pictures but the colors don't really come across. The blue in particular seems to get muted by my phone.

View attachment 1209117View attachment 1209122View attachment 1209118View attachment 1209123

Thanks for this. I know the Paris is a bit of a lighter blue, and that roulette chip looks almost the same under UV even though they're quite different under visible light.
It's strange, my chip is on the darker side of the medium Paulsons...and under UV it gets DARK purple, almost like it's absorbing all of the UV light.

 

[QueYo]

The roulette glows a beautiful, bright, light-blue under black light that doesn't come across in the picture. It was described as Horizon Blue, though someone thought it might be Blue Grain. The Paris goes purple-pink.

 

[ArtFern]

White light

Generic LED black light (mixed wavelength)

365nm LED black light

 

[Colquhoun]

White light
View attachment 1209163



Generic LED black light (mixed wavelength)
View attachment 1209164


365nm LED black light
View attachment 1209166

Wow, from the photo, it appears that the Bahama Blue is the dark purple one, correct? Is that your finding seeing it in person?
I wonder what Ocean Blue looks like in comparison.
Thank you for doing this!

 

[ArtFern]

Okay let me take another shot at this. And not forget the Ocean Blue this time.

Lighting really matters here. Just based on your photo and me eyeballing my color samples, your relabeled long cane is definitely not Horizon Blue or Ocean Blue. I think it has to be one of Light Blue, Bahama Blue, or Dark Blue.

Took some more color sample photos.

First, natural daylight outside on an overcast day here in the northwest.

#2 Light box with very cold/blue LED light.

#3 In a light box with warmer LED light.

#4 Direct multi wavelength black light. In this one I'm pointing the black light at the chips.

#5 This time, I'm using the multi wavelength black light again, but reflecting it off the light box surface.

#6 Reflected black light again, but this time using the 365nm black light.

 

[ArtFern]

The Light Blue, Bahama Blue and Ocean Blue go purple under black light. The Dark Blue goes more blackish-blue.

As a side note, the UV tells us that Aria/Bellagio/Caesars $1 chips are definitely not Ocean Blue, even though under natural light they kind of look like they could be. UV tells us they are all Horizon Blue.

I'm leaning towards your chip in question being Light Blue. Bahama Blue is like a muddy or dirty Light Blue, as though some gray or very dark green pigment got mixed in. I don't see that same tint in your first photo.

I'd bet your Whisky Petes $1 when it was new looked to be the same color. I think the color difference there may be wear or fading from being in play at the casino for some time.

 

[Colquhoun]

The Light Blue, Bahama Blue and Ocean Blue go purple under black light. The Dark Blue goes more blackish-blue.

As a side note, the UV tells us that Aria/Bellagio/Caesars $1 chips are definitely not Ocean Blue, even though under natural light they kind of look like they could be. UV tells us they are all Horizon Blue.

I'm leaning towards your chip in question being Light Blue. Bahama Blue is like a muddy or dirty Light Blue, as though some gray or very dark green pigment got mixed in. I don't see that same tint in your first photo.

I'd bet your Whisky Petes $1 when it was new looked to be the same color. I think the color difference there may be wear or fading from being in play at the casino for some time.

Wow, thank you! I somehow missed these replies. Great work setting this up!
I always figured there would be only one chip that was that dull purple under UV light. Now to find out there’s 3 of them! I thought it would be a definitive way to isolate some versions of Paulson blues…but I guess we’re back to doing it with regular light.
Thank you for this!

 

[SpaceMonkey420]

Okay let me take another shot at this. And not forget the Ocean Blue this time.

Lighting really matters here. Just based on your photo and me eyeballing my color samples, your relabeled long cane is definitely not Horizon Blue or Ocean Blue. I think it has to be one of Light Blue, Bahama Blue, or Dark Blue.

Took some more color sample photos.

First, natural daylight outside on an overcast day here in the northwest.
View attachment 1209409


#2 Light box with very cold/blue LED light.
View attachment 1209411

#3 In a light box with warmer LED light.
View attachment 1209412



#4 Direct multi wavelength black light. In this one I'm pointing the black light at the chips.
View attachment 1209414


#5 This time, I'm using the multi wavelength black light again, but reflecting it off the light box surface.
View attachment 1209416

#6 Reflected black light again, but this time using the 365nm black light.
View attachment 1209417

u sir are epic!