old maps of bangkok

i've been looking for some old maps of bangkok but haven't found too much yet.

2bangkok has an old french map along with some engravings and amusing text from a disgusted french visitor from 1892. monsier fournereau felt that bangkok was in a sorry state and what thailand really needed was french colonial influence for things to improve. someone must have listened to m. fournereau as the next year thailand was forced to give up laos to france as well as a number of other concessions in exchange for, well, nothing.

wikipedia has a more detailed german map from 1888, showing plantations and a mangrove forest near the mouth of the chao phraya river.

it's interesting to see how how relatively undeveloped bangkok was at the time, despite having been the capital of thailand for over 100 years. if you know of some more interesting historical maps of bangkok online, please let me know.