Western handcuffs leg irons

My hand cuffs leg iron look like Tower Double Lock but I have no idea. On one of the cuffs on the piece you put the key in, at the end that joins close to the chain has some printing on it. Looks like
A 7 E
MAY. 2 (maybe 21)
SEPT. 4
MAR. 5
DEC. 6 (maybe 16).79
Can't read bottom line

What do you think and what are they worth???

My hand cuffs leg iron look like Tower Double Lock but I have no idea. On one of the cuffs on the piece you put the key in, at the end that joins close to the chain has some printing on it. Looks like
A 7 E
MAY. 2 (maybe 21)
SEPT. 4
MAR. 5
DEC. 6 (maybe 16).79
Can't read bottom line

What do you think and what are they worth???

What anonymous said.