Johann Peter Thewalt / Johann Peter Thewalt Inhaber Carl Thewalt (Witwe)
Bergstraße 1a Höhr, Hesse-Nassau, Prussia. (now Höhr-Grenzhausen, Rhineland Palatinate).
Steinzeugwarenfabrik / Stoneware manufacturer
The company was founded around 1850/52. During the late 19th century, it had a good working relationship with the J.W. Remy company, due to the fact that Carl Thewalt
was married to Anna, the daughter of Johann Wilhelm Remy. There was considerable cross trading, with the companies exchanging moulds, production capacity and labour. This lead to many similarities in their product ranges.
Johann Peter (b.14/10/1822 - d.21/9/1887) was married to Katharina Gerz (b.6/4/1828 - d.11/11/1865). He was succeeded by his son Carl Wilhelm (b.12/1/1864 - d.18/2/1923 and then by Carl's widow, Anna née Remy (b.14/1/1867). Carl and Anna's son, Hubert Albert (b.8/2/1894 - 30/10/1941) worked in the factory, but lived elsewhere, at Mittelstraße 38. Presumably upon the death of Anna circa 1930, Hubert closed down the factory, but moved into the family home, now called Bergstraße 3, where he lived as a merchant until around 1936.
The following designers created the pottery for Johann Peter Thewalt: Alfred Kamp
Reference PT Mark Westerwald Adressbuch
An advertisement from Führer durch Höhr, dated 1907 
There has been earlier controversy over this mark, attributing it to Paulus & Thewalt. However this theory has been discredited and it is now known to be Johann Peter Thewalt. 
JPT mark complete with signature of the pewterer (Zinngießerei) Chr. Reck of Munich. 
Mould # 1172. 
There has been earlier controversy over this mark featured on the above stein, attributing it to Paulus & Thewalt. However this theory has been discredited and it is now known to be Johann Peter Thewalt.
Another variation of the mark on J.P. Thewalt #1658 
The central down stroke covers the "J", "P" & "T". Capital "I" & "J" are the same in Old German and the dot above the down stroke is to indicate that there is an "I" or "J" present; hence JPT. This is known as the "TP" or more accurately the "JPT" mark. 
complete with the ink stamp of the painter / decorator, Theodor Schmid of Munich. 
There has been earlier controversy over this mark, attributing it to Paulus & Thewalt. However this theory has been discredited and it is now known to be Johann Peter Thewalt. 
Another variation of the mark on J.P. Thewalt #1293 The "U" shaped symbol under the 1293 has only ever be seen on J.P. Thewalt steins and can therefore be considered an identifier for that maker. 