What blade is this?

[yoass]

An old pongfriend, who I used to train with 40 years ago, gave me his old blade from way back. He thinks it's a Butterfly blade. It is unmarked, except for a "B-5-7" marking, and I think it's a five-ply all-wood blade.

Does anybody recognize this?

 

[CSBV]

Seems an old Tibhar Tibor B-5-7 to me.
B stands for Basswood, 5 plies, 7 mm total thickness.

 

[yoass]

Seems an old Tibhar Tibor B-5-7 to me.
B stands for Basswood, 5 plies, 7 mm total thickness.

I think that is spot on! Your remark made me re-examine my own vintage frame, certainly a Tibor; when I photographed it it still had its label, my son's been playing with it for a while and I removed it inbetween. Wow, thanks!