Diet : ... Petrolagar / Petrolagar Laboratories, R.B. Davis Co.
- Petrolagar Laboratories.
About this work
Double sided advertisement (from a magazine?) for the Petrolagar Laboratories' laxative Petrolagar and R.B. Davis Co.'s "protective food drink", Cocomalt, rich in vitamin D, calcium and phosphorus.
Where to find it
Location Status AccessClosed storesEPH179 Location AccessClosed storesEPH179:5