well I found my dummy east german 5.45mm rounds, I have one that is 1988 and a all most full plastic blister pack of 1987 dated 05 factory code training rounds. I do not have a real good camera to photo the base markings
edit: Ok I decided to attempt to take pictures sorry about the quality its a phone camera
on the left is the blister pack for the 1987 East German ak-74 training rounds, w/ single 1987 I would have doubled the purchase price, at the time to buy a unopened blister pack. Apparently, he was selling them individually and then gave up ?? what is this fetish of " I got to pen that rare box, package, sealed ammo can etc"
In addition I have a single 1988 East German ak-74 training round with a East German Mak training round in the photo. I have numerous 9mm Mak East German training rounds and the clear plastic cube to store them. I posted the 9mm Mak training round here to show the difference
all early training rounds has a steel base with polymer head, The bases are un-marked. I have these training rounds in 8mm mauser, 9mm para, 9 mak, 7.62 x39 . A fellow collector has one for the MP-44 in 8mm Kurz. I have been told they also came in other calibers IE: 32 acp ( 7.62 browning) & 7.62 x 54r