Hi, I hope these pics can help you. It looks a bit different though, are you sure yours is a crass?

http://i303.photobucket.com/albums/n...psluuzn6zd.jpg
http://i303.photobucket.com/albums/n...psrajvwlv0.jpg

http://i303.photobucket.com/albums/n...psoaouqo50.jpg

very nice..my first time to see this style of barrels at the breach end..charlie

Crass Help
 

Thanks so much. The photos of the barrels are just what I needed. Good detail on the cocking hook. I now see how it operates. I have successfully fabricated new firing pins based on your original album photos. I am in the process of making a main spring and sear spring for one side then on to the barrel parts. Thanks again.

Is it a crass?
 

My action has six screws(one blind screw in the front which appears not to do anything), a dolls head extension, and flat main springs, and a serial number of 41371 led me to believe it to be a crass. The barrel lump mechanics did not match anything I could find for any of the the Ithaca's. I have a Flues and the cocking mechanism on this one is very different. Did not look like photos of a Lewis or Manier mechanisms to me either. The number of holes in the lumps is puzzling. None of the photos I have seen have that many holes in the lumps for screws and pins. Two pins are in place and there are holes for three screws. I am far from an expert on Ithaca's so my analysis and conclusions may be incorrect. For $75 this gun has provided a great amount of enjoyment and provided me with an opportunity to learn a great deal about Ithaca doubles. Tha

I think the "blind screw" would be the mainspring strain pin in my parts album for the Lewis model.

I believe that I have dimensions on them if you need it.

...and yes, an Ithaca hammerless with six screws/pins in each side of the receiver of that serial range should be a Crass model. Lewis models have only five (the sear pins being hidden by the stock head).

Crass help
 

I was wondering if you had any idea what the second notch in the lumps is for? The locking bolt engages the notch nearest the barrels I don't know what goes in the second notch. It can be seen in the third photo. Thanks for the offer to measure the screws but all of the screws are present.

It's hard to see in the first photo that you posted, but that square channel between the lump and the barrels is for ejectors, I believe. I think you may be looking to replace ejectors as opposed to an extractor. What does your forend iron look like?

The forend is not set up for ejectors, neither is the action and the action, forend iron and barrels all have the same serial number.

I was asking about the notch in photo 3. I have included a photo indicating the second notch that I can't figure the function of.