C. S. Laboratory 57.5 cal packet

[Story]

Someone's daughter found this at a yardsale and gifted it to him.

Does anyone recognize the labeling and can they match it to a known supplier of reproduction cartridges?

 

[Craig L Barry]

That's a new one. I have seen .54, .577, .58 and .69 arsenal packs but not one exactly like this.

 

[Story]

Match on repros, second page - right column - third label down
PISTOL & MUSKET & CARBINE CARTRIDGE LABELS - REENACTORS | #17797490 (worthpoint.com)

Note the last digit of the year date is left blank.