Constantinople (İstanbul)
units of mass

early 1800's

kantar

batman

7 1/3

oke

6

44

rottolo or lodre

2 3/11

13 7/11

100

cheki or yusdrome

1 19/25

4

24

176

metcal or miscal

66 2/3

117 1/3

266 2/3

1600

11733 1/3

dirhem or drachme

100

176

400

2400

17600

3.21 g

4.81 g

320.75 g

564.47 g

1.283 kg

7.698 kg

56.452 kg

On 24 August 1821, the London Mint compared British standards with a set of weights certified as accurate on 10 April 1821 by the official in Constantinople responsible for such certification (see Kelly, 2nd edition 1835, volume 1, page 376). They obtained the value 1 oke = 19800 English troy grains, equivalent to 1.283 kilograms.

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