Grefi

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Grefi was a Romanian measure of length.

1 Grefi = 3.98 centimeters (also larger than 4 centimeters)
2 Grefi = 1 Rup = 7.96 centimeters ( Moldau )
2 Grefi = 1 Rup = 8.3 centimeters ( Wallachia )
16 Grefi = 1 Cot = 0.637 meters

literature

Helmut Kahnt, Bernd Knorr: Old measures, coins and weights. A lexicon. Bibliographisches Institut, Mannheim et al. 1987, ISBN 3-411-02148-9 , pp. 56, 109, 259.