Meccano Manuals 1908 - 1981

Pre-war - Other

Changes between the
1925, 9/26, 1/27, 3/28, 7/28 & 11/28
Standard Mechanism Manuals

General

The main change is between the 1925 and the 9/26 manuals and is on page 43 where:-
The 'Triangle of Forces' was deleted and replaced by three new mechanisms - SM.279-SM.281

An easy way to identify a manual which is missing its covers is by the 'Particulars and Prices of Meccano Parts' on pages 45/6. Details are as follows:-

Detailed changes between the manuals

1925

9/26 (differences from 1925 edition)

1/27 (differences from 9/26 edition)

3/28 (differences from 1/27 edition)

7/28 (differences from 3/28 edition)

11/28 (differences from 7/28 edition)