| Number | Name | Date | Kind |
|---|---|---|---|
| D292865 | Scott | Nov 1987 | |
| D295013 | Vosbikian | Apr 1988 | |
| D305496 | Jasperson | Jan 1990 | |
| D342426 | Concari | Dec 1993 | |
| 3804450 | Guenzel | Apr 1974 |
| Entry |
|---|
| Smith and Hawken Catalogue (Spring 1987) p. 8, Diamond Steel Hand Trowel. |
| Trump Garden Tool brochure (1065) p. 2, No. 412 Trowel. |