"Many thanks for your New Year's greeting."
(早々に賀状を頂戴しまことに有難うございました。)
解説
他に次のような文例もあります。"I express my hearty thanks for your kind letter greeting the New Year." "Let me rejoice the kind wishes you have expressed on your kind letter." "Let me return your compliments of the season." "Thank you for your early greeting at the very beginning of this year."
