Cylinders, circles, ovals and squares are a recurring feature in Meydam designs. Many of his designs for tableware can still be found in shops today. As a rule, Meydam production glasses are not signed. The production of Leerdam covers the full range of hand blown crystal glasses, machine made glasses, pressed glass articles, pressed crystal, Unica, and experimental pieces. Quite a lot of unsigned Leerdam glass has been exported to the USA and Canada where it is often mistaken for Steuben.
Rims are flame-polished to a very high standard.
Even if the model is unfamiliar, the finish of the rim can help to determine if a glass has been made by Leerdam or not. Heavy crystal pieces are equally simple and well finished - dozens of different models of contemporary looking decanters with matching glasses have been produced over the past 50 years or so. Pressed wares were mostly made for the local market. It was not a great success as his designs proved technically too difficult. There are two other major sources of glass designed in the Netherlands.