An unusual find

When I first saw this teapot I found it confusing as it suggested a persian origin but then I realised that the green larchlap towards the top would suggest a Dutch manufacture. The hallmark on the bottom immediately told me that it was manufactured by the well known craftsmen, the Van Corag brothers, who were at their prime in the mid 18th Century when their factory was based in the outskirts of Amsterdam (it later moved to larger premises in Haarlem). They were well recognised for both creating the perfect internal facilities for tea infusion while still maintaining very spacious living quarters. I believe it was the Van Corag brothers who first introduced the the two way 'frogget' valve which enabled the boiling water (essential for the perfect brew of tea) from scolding those living below. The only other interesting fact about these brothers is that, although they always agreed on the the design of the main body of their structures, they could NEVER agree on the handle and spout and so they designed these individually. One brother was gay and so it was suggested that he always designed the handle but this isn't documented in the factory records.