Need some help & info

[dianeandeds]

Just obtained this long switchblade knife. It came flying open (at an alarming rate) no problem. We do not know how to close it! Or how old it is. It is marked Rostfrei IMPORT and appears to have real antler handles. Like before, Ed & I know antique cars, signs, lamps etc...
but nothing about knives.

Thanks! Diane

[IMBand]

It's a Pinch-Lock. You need to pry up on the tab that is on top of the knife where the blade meets the handle. Usually your thumb should be enough....put your thumbnail under the edge of the tab and push in and up while trying to fold the blade closed. Nice knife by the way.

IM

[Iron Hoarder]

It's most likely German and dates to the 1946-66 period or a little later.

[knife-nut]

I think the top bolster will rotate slightly (or swivel) and move the lock tab out of the way to unlock it. The bottom edge of the bolster is slightly rounded so it can swivel. Mark.

[CobraBill]

I think the top bolster will rotate slightly (or swivel) and move the lock tab out of the way to unlock it. The bottom edge of the bolster is slightly rounded so it can swivel. Mark.

Push down on the button side bolster on the top, that may do it.

[Classic Case]

Yes, the one bolster is rounded where it meets the scale. Push it down to release the lock. ( As others have mentioned.)

[CobraBill]

Did you figure it out?