Just purchased and the guy was using electrical tape for a breech seal. Looks like lead was melted into the
groove that is where the seal would go? It's a '67 model. I can't find a parts diagram to compair it to.
Never seen that one before! You have to give the previous owner high marks for some creative airgun vandalism at least.
The OEM breech seal was a simple rubber O-ring, usually with a thin metal shim or two behind it (they love their shims at the Diana factory). Here's a parts diagram:
http://www.gunspares.co.uk/shopdisplayp ... 4392&cat=5