This is a nest of three coins, manufactured by Gibson. It also includes some cards, one of which is magnetic. There are shims within the nesting coins. The coins are an old 10p, a 2p and an old 5p. It also includes a standard unmagnetic 1p. I assume this set is for a specific trick, but I have not been able to identify it. The coins date from 1969 to 1971.
 
Instructions: None
 
Condition:
Good, some wear.