Rolleiflex lens hood problem (Bay I)

Hi everyone!
I just bought a Rolleiflex lens hood for my R. Automat (on Ebay).
The lens hood is odd: the flanges fit into notches (as the hood on my other larger Rolleiflex), but I can't turn it to fasten it (unlike the other one). There appears to be no groove for the flanges on the camera to slide into, or the groove is too thin. Has anyone experienced this? Is this a Rolleicord hood maybe?

You are pushing it in before you turn - right? My Bay 1 hood has some kind of spring loaded deal that requires a firm push in before you turn.

jgoody said:

You are pushing it in before you turn - right? My Bay 1 hood has some kind of spring loaded deal that requires a firm push in before you turn.

Click to expand...

Thanks I had no idea.

Glad it worked!