Reference for Menachot 176:15
ומאן חכמים ר' אלעזר הוא דתניא רבי אלעזר ברבי צדוק אומר כמין טס של זהב היה לה על גבה כשהוא מטיבה דוחקו כלפי פיה כשהוא נותן בה שמן דוחקו כלפי ראשה
R'Huna the son of Rab Judah said in the name of R'Shesheth: The lamp [at the top of each branch of the Candlestick] in the Temple was flexible.<span class="x" onmousemove="('comment',' Lit., separate parts'. The meaning is that although the whole Candlestick, including the lamps, was beaten () out of one piece of gold, the ends of the branches which supported the lamps were made quite thin and flexible so that the whole lamp could be turned in any direction and thus be cleaned out well.');"><sup>12</sup></span> He is of the opinion that the expressions 'a talent'<span class="x" onmousemove="('comment',' Ex. XXV, 39. This word is omitted in MS.M.');"><sup>13</sup></span>