Stanley No. 20 Try Square Type Study                                                                

sno20sq_typ2_3ina.jpg (25562 bytes)
Stanley No. 20 Try Square Type I  3 inch with hand stamped numbers

Manufactured: 1888 to 1984
Patents: Traut's 12/29/1896 ("Hand-y" feature for squares), Traut's 3/16/1897 ( "Hand-y" feature and "quatrefoil"  construction )
Sizes: 3,4 1/2, 6, 7 1/2, 9, 10, 12, 15, 18 inch
Construction: Rosewood frame, steel blade, brass trim
Finish: Lacquered
Notes: Originally No. 2, designed No. 20 in 1888. Offered with metric graduation in 1902. The larger sizes of this model have a "quatrefoil" decoration to anchor the four rivets. The 15 and 18 inch sizes have a rest on the handle.

Stanley No. 20 Try Square Type Study                                                                                                 

Type Period Trademark Notes Picture of Mark
1 1888 to 1895 hand stamped numbers Same as Stanley #2 Plated Try Square Type 3 sno20sq_typ2_12in_mark.jpg (11921 bytes)
2a 1896 to 1906 O trademark stamp "Stanley" in Block Letters with 12-29-96 Patent date stan20_75inchmark.jpg (3972 bytes)
2b 1896 to 1906 O trademark stamp "Stanley" in Block Letters with 12-29-96 Patent date in small font stan20_10inchmark.jpg (3824 bytes)
3 1907 to 1909 T trademark stamp "Stanley Rule & Level Co. New Britain Conn. U.S.A." in the form of a T sno20sq_markt.jpg (11596 bytes)
4 1910 to 1920 V trademark stamp "Stanley New Britain Conn. U.S.A." in the form of a V <image not available>
5a 1920 X trademark stamp Notched rectangle containing "Stanley" with Sweetheart mark intersecting on bottom of rectangle. "New Britain, Conn, U.S.A." below SW mark. sweatheart3.jpg (69513 bytes)
5b 1921 & 1922 Y trademark stamp Notched rectangle containing "Stanley" with Sweetheart mark intersecting on bottom of rectangle. "Made in U.S.A." below SW mark. <image not available>
5c 1923 to  1935 AA trademark stamp Notched rectangle containing "Stanley" with Sweetheart mark intersecting on bottom of rectangle. "Made in U.S.A." below SW mark. <image not available>
6 1936 to  1984 BB trademark stamp Notched rectangle containing "Stanley"   "Made in U.S.A." below trademark. sno20ts_markbb_8in.jpg (8959 bytes)
sno20ts_markbb_12in.jpg (17334 bytes)
sno20ts_markbb_10in.jpg (10919 bytes) sno20ts_markbbhndl1.jpg (23450 bytes)