| Name: | PD 580 (DA 153) | |
| PD: | PD 580 | |
| Title: | Section plan of area Π in 1935+. | |
| Notes: | Heliotype of PD 260 with notebook references fn. Π, ΜΣ, Λ, etc. stored here. | |
| Storage: | 33-9 | |
| Condition Drawing: | f | |
| Condition Base: | Fragile | |
| Material: | Gauzed Graph Paper | |
| Medium: | Drafting Ink Pencil | |
| Size Sheet: | 0.40 x 0.335 | |
| Scale: | 1:200 | |
| Date: | 1935 | |
| Section: | Π |