Solid Brass Even and Odd Sized Universal Clock Key Set - Size 2 to Size 11

This set of 2 keys measure 3" wide. The sizes are:
2 (2.75)
3 (3.00)
4 (3.25)
5 (3.50)
6 (3.75)
7 (4.00)
8 (4.25)
9 (4.50)
10 (4.75)
11 (5.00)
Key size..........American................. Swiss
5/0.................. 1.6...................1.25
4/0.................. 1.8 ..................1.5
3/0.................. 2.0.................. 1.75
2/0.................. 2.2.................. 2.0
0.................... 2.4 ..................2.25
1.................... 2.6.................. 2.5
2.................... 2.8.................. 2.75
3.................... 3.0.................. 3.0
4.................... 3.2...................3.25
5.................... 3.4.................. 3.5
6.................... 3.6.................. 3.75
7.................... 3.8.................. 4.0
8.................... 4.0.................. 4.25
9.................... 4.2.................. 4.5
10................... 4.4 ..................4.75
11................... 4.6.................. 5.0
12................... 4.8.................. 5.25
13................... 5.0.................. 5.5
14................... 5.2.................. 5.75
15................... 5.4.................. 6.0
16................... 5.6.................. 6.25
17................... 5.8.................. 6.5
18................... 6.0.................. 6.75
19................... 6.2.................. 7.0
20................... 6.4.................. 7.25
21................... 6.6.................. 7.5
22................... 6.8.................. 7.75
23................... 7.0.................. 8.0

Made of thick solid brass and the sizes are etched in to the base. They do have some slight tarnish.
A must have for the clock guy and gal.