Springback - what kind of back is this?

[Ron (Netherlands)]

Hi, recently I got a springback for a project (want to put in on an older camera to make it more practical in use). Now I had already some filmholders i.e. Fidelity Deluxe 9x12 and Sinar "4x5 inch für Film 9x12" however none of these fit (they are too wide).
Therefore my question: what kind of springback is this (there is no name on it). And what kind of filmholders will fit?

thanks
Ron

picture of the springback can be found here:

http://kpmg0072.home.xs4all.nl/Springback/P1040825.JPG

[brucep]

Could it be a 6x9?

[mdarnton]

What does the ground glass measure?

[Dan Fromm]

2x3 (6x9 in metric) Graflok, also called International, back. Not made by Graflex. I have no idea what it fits.

[Daniel Stone]

could it be a 3.25x4.25?

[DrTang]

could it be a 3.25x4.25?

not sure anyone made a 3x4 grafloc back - don't think I've even seen one anyway

[Bill_1856]

not sure anyone made a 3x4 grafloc back - don't think I've even seen one anyway

There's one on my 3x4 Speed.

[DrTang]

There's one on my 3x4 Speed.

they must be pretty rare as I don't remember seeing an accessory like a roll back - to fit 3x4..other than those odd ones that fit the 3x4 RB graphics with that weird bail type back

[Bill_1856]

they must be pretty rare as I don't remember seeing an accessory like a roll back - to fit 3x4..other than those odd ones that fit the 3x4 RB graphics with that weird bail type back

Not really -- it's just that 3x4 Graphics went out of fashion after WW2.
Incidentally, the 3x4 GRAFLEX back weighs a whole pound more than the Graflox back. ( I bought one to use with my 3x4 Super D Graflex, and the bag-mags which I love).

[Ron (Netherlands)]

What does the ground glass measure?

The ground glass measures: 9 x 12 cm

Here is a picture of the back with the ground glass and a ruler:

http://kpmg0072.home.xs4all.nl/Springback/P1040828.JPG

[Dan Fromm]

OK, nominal 4x5 and from a camera with a rotating back.