tank question

[greyhound]

Hello,
I just bought an old 20 gallon tank with the stainless steel frame and slate bottom.My question is that the back is painted the blue dye color that a tool and die maker uses on die set-ups.The paint looks like it frosted.Real cool looking.Nice designs all over the tank.You can put a light behind the tank and the light can be seen thru the dye colored paint.But you cannot see thru to the back wall.My battery is dead in my camera.Maybe I can take a picture thru my phone and send it to my computer to get it to this page.It gives the back a 3-d effect.Would like to find out how this was done.Sure would be nice to redo the effect on the back of the tank.It looks like it was hand scribed for the high and low marks in the frosted areas.Any ideas how this was done?I sure this was not a factory thing of that time period.Could this have been a science room item from a school?Thanks Rick

[Mike Wise]

There is/was a product called Crystal-Craze that gave a similar effect. Could this be what you see on your tank.