Flathead ID help please

I have just purchased my first flathead and am having trouble with the ID numbers.I was told it was a 1947 and was used in a crane.On top of the bellhousing there is a flush mounted plate with B41:44 on the plate.Next to that cast into the bellhousing is X11.The passenger head has 9T stamped on it with a 7 below it.The drivers side head has no markings.On the side on the bellhousing there is a tag riveted on stating the engine was rebuilt by Beasley motors in Pittsburg with a rebuilders number of 22786.The engine is so complete it is to good to be true.
It has the cam driven distributor with two piece cap and center water outlets on the heads.The bellhousing is part of the block so I do believe it is close to a 1947 from what I have learned so far.I surfed the net until my eyes were bugging out and cannot find the block ID numbers on any of the sites I visited.Thank you for any help I can get.
Chris

 

Does that rebuild tag have the bore, rod and main oversizes stamped into it? Most I have seen have that info.
It may just be an X block, that's a goodie. @pc distributor cap is 46-48.

 

No bore and stroke infnly what ford dealer did the rebuld and an ID number.Thank you for your reply.

 

With no 59 on the bell it's not '47. Presumably a prewar, the heads would indicate 239 truck, which would be the excellent 99 block, but of course they'd fit anything. Foundry numbers you have do not indicate model at all.
Start at front: Does the curve of the block from the manifold fron area to the top of timing cover slant like so: / Or is there a concavity to the curve, resulting in a sort of small shelf that could hold a pencil tight above timing cover??
Bottom edges above pan sides: '39-40 pan rails of nlock have 2 freeze plugs in them, resulting in 2 bulges at side of block each side visible when pan is still on. '41-42 blocks have a raised surface under manifold that looks like an extra gasket is permanent poart of block...all other years have entire top surface of block flat to same level.

 

Thank you for your help Bruce.There is a slope or curve from the timing cover up.Couldnt get my pencil to stay.There does appear to be a raised area on top of block as you said and I can find no lumps in the block.My lighting wasnt the best and will look again tomorrow.I would like know what I have and gain as much knowledge of it as possible before turning the first wrench.If you can suggest any good reading or web sites that would be great.Thank you again for taking the time.
Chris