Sheath for Puma Frogmesser

[knife7knut]

Looking to get a sheath for a Puma Frogmesser(Frogman's knife).Not sure if the later model will work;mine is an early(pre-64) model.There is a special spring loaded locking device that holds the knife in the sheath.I have enclosed a picture of the sheath(not mine;this is a later model taken of another site)PM me or send e-mail ([email protected]).Thanks.