| Name: | PD 2613 (DA 3479) | |
| PD: | PD 2613 | |
| Title: | Grids formed trigonometrically by tapes. | |
| Artist: | W.B. Dinsmoor, Jr. | |
| Storage: | 28 | |
| Condition Base: | Dirty | |
| Material: | Heavy Tracing Paper | |
| Medium: | Drafting Ink | |
| Size Sheet: | 0.322 x 0.167 | |
| Bibliography: | JFA 4 (1977), p. 309-28, fig. 2. | |
| Date: | 1989 |