Featherbed numbers

I finally found a featherbed frame that I could afford this weekend. I looked at the numbers near the swingarm and only found vertical numbers,
4 10 30 55
My understanding is that there should be horizontal numbers and numbers near the headstock. I have neither.
My research points to an es2 frame from the digit 4. Any idea what the rest refers to? Thanks and happy holidays.

Serial number 103055. The bike model is designated by the horizontal number.

The month and year frame was made are stamped on the edge of the tab for the head steady bracket. This tab is welded to the headstock.

Slick

"4" means ES2 and the number 103055 sounds like 1962 to me - so it's a slimline?
The front engine mounts are a giveaway - the single (one lug per side) was different to twins (which had 2 lugs per side)
Despite the protestations of some (@Bernhard) the Model 50 (350cc) and the ES2 (500cc) had the same frame and part number - 203052
Cheers

robs ss said:

"4" means ES2 and the number 103055 sounds like 1962 to me - so it's a slimline?
The front engine mounts are a giveaway - the single (one lug per side) was different to twins (which had 2 lugs per side)
Despite the protestations of some (@Bernhard) the Model 50 (350cc) and the ES2 (500cc) had the same frame and part number - 203052
Cheers

Click to expand...

Slimline, yes. Thanks very much.

I know this is an old thread, I have a question regarding the date of my frame.

Triton with 1956 T110
Wide featherbed frame with number on fork tab as noted in picture.

Appears to be hand stamped.
Trying to date the frame.
Looks like N 0916...?

fasteddysports said:

I know this is an old thread, I have a question regarding the date of my frame.

Triton with 1956 T110
Wide featherbed frame with number on fork tab as noted in picture.

Appears to be hand stamped.
Trying to date the frame.
Looks like N 0916...?

Click to expand...

You have not attached a photo