68 Convertible Weatherstrip Part Identification

[68rs327conv]

Trying to identify a broken piece of possibly weatherstripping on my 68 Camaro Convertible with a power top.  See picture attached.  This is LH side, not on RH side except for the hole the piece would push into.

Thanks in advance for your assistance

[KevinW]

There is a "tail" in the last piece of top frame to glass weather-strip which goes into that hole.