[alleyyooper]

This is how it looks on a 81,20, 22, 21 (colt) and 23 (mustang)
On models with a PTO the oval plate will have a switch lever.

Here is where it is at on the 101r's, 101 Seniors and 101 Juniors. sitting on the seat it is just to the left of the PTO lever.

This is where it is on the 30, 33, 44, 333, and 444 Sitting on the seat it is just to the left of the PTO input lever. On the 333 and 444 sheet metal may have to be moved. My 44 br# b is for butane r is for rowcrop.

Al

 

[Guest]

The 55 and the 555 are located in the same place as the 44,444,30 and 333

 

[Ron Lopez]

I am trying to determine the Model of my 1952 MH Liquid Propane. I checked the location noted below and the only numbers there on the frame were 7647956M1 and J30 D2. Here's a photo of my tractor

 

[thom]

Here's where I found the number cut into my Pony. As you can see it is just forward of the cast gear pattern, to the left of the shift lever. My number is 19074, which tells me that my tractor is a 1952 model. The casting date on the engine block is late in 1950. I suppose engine blocks could well have been cast that far before tractor production, especially knowing that M-H was outsourcing the engines from Continental.
I plan to order a replacement plate for the missing one for my tractor and have my number stamped onto it.