I need help with translation

It seems that "Era Kanbun, 1661-1673"
But masters Name?

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Nagakado

It is "SA-something NAGAKADO (no) KAMI SAKU".
The "something" is the kanji TOu or TSU, but I don't know the reading in this case. Possibilities are SAKON, SATOu, SATSU, etc.
See NAG218 as a possible match.
And google for "nagakado" or "nagakado kami".

Pete