Numbers card, with 16" tall numerals in HO (1/87) scale. Generous amount, with extra 1, 8 and 9's because you'll probably be using 1800s and 1900 dates. Perfect for adding dates, etc to structures, monuments, bridges, tunnels and vehicles.  
Scale Dimensions (inches)
| N | HO | S | O | G | 
|---|
| 29 | 16 | 12 | 9 | 4 |