I worked for an armored car company back in 1992-93. We were issued .38 Special Smith's and some .357 Magnum Smith's and Ruger's. Most of these revolvers were police trade in guns, from when they were switching from revolver to 9mm.
Some of the guns were in good condition, and some were not. Unfortunately, my issued weapon was in poor condition. The company would let us purchase, qualify, and carry our own pistol. I carried a Beretta 92FS 9mm.
There were shotguns on board. They were generally in rough shape. Brands were Remington, Savage, Winchester, Mossberg, and High Standard. You just never knew what you were going to get.
As for pay, how does $5.65 an hour sound! Unbelievable. There was some employee theft, mostly stealing from ATM's or bags coming up missing. I recall one messenger was walking up to a ATM, and was disarmed, and pistol wiped. Bad guy took the money bag and ran.
All in all, it was back breaking work. It was kind of like the UPS with guns. And of course, less pay.