The Gemara discusses what disqualifies a menorah, including if it was made in separate pieces and assembled rather than hammered from one block. The requirement of 'mikshah' is analyzed, indicating that the menorah's unity is not merely aesthetic but legally constitutive of its validity.
תָּנוּ רַבָּנַן: מְנוֹרָה הָיְתָה בָּאָה מִן הָעֶשֶׁת וּמִן הַזָּהָב. עֲשָׂאָהּ מִן הַגְּרוּטָאוֹת – פְּסוּלָה, מִשְּׁאָר מִינֵי מַתָּכוֹת – כְּשֵׁרָה. מַאי שְׁנָא מִן הַגְּרוּטָאוֹת פְּסוּלָה? דִּכְתִיב ״מִקְשָׁה״ וַהֲוָיָה, שְׁאָר מִינֵי מַתָּכוֹת נָמֵי זָהָב וַהֲוָיָה! ״מִקְשָׁה״ דְּסֵיפָא לְמַאי אֲתָא? לְמַעוֹטֵי חֲצוֹצְרוֹת, דְּתַנְיָא: חֲצוֹצְרוֹת הָיוּ בָּאִים מִן הָעֶשֶׁת, מִן הַכֶּסֶף. עֲשָׂאָם מִן הַגְּרוּטָאוֹת – כְּשֵׁרִים, מִשְּׁאָר מִינֵי מַתָּכוֹת – פְּסוּלִים. וּמַאי שְׁנָא מִשְּׁאָר מִינֵי מַתָּכוֹת פְּסוּלִים, דִּכְתִיב ״כֶּסֶף״ וַהֲוָיָה, מִן הַגְּרוּטָאוֹת נָמֵי ״מִקְשָׁה״ וַהֲוָיָה? מִיעֵט רַחֲמָנָא גַּבֵּי מְנוֹרָה ״מִקְשָׁה הִיא״ – ״הִיא״, וְלָא חֲצוֹצְרוֹת.
The Sages taught (Tosefta, Ḥullin 1:18): The Candelabrum was fashioned from a complete block [ha’eshet] and from gold. If they fashioned it from fragments [hagerutaot] of gold then it is unfit, but if they fashioned it from other types of metal rather than gold, it is fit. The Gemara asks: What is different about a Candelabrum made from fragments of gold, that it is rendered unfit? As it is written with regard to it: “Their knobs and their branches shall be of one piece with it, the whole of it one beaten work of pure gold” (Exodus 25:36), employing the term “beaten [miksha]” and a term of being, indicating that it is an indispensable requirement. But accordingly, a Candelabrum fashioned from other types of metal should be rendered unfit as well, since the verse states that it is made from gold and uses a term of being. The Gemara asks: For what purpose does the term “beaten work” that is repeated again in the latter clause of the verse come? The Gemara answers: It comes to exclude the trumpets, teaching that they are fit even if they were not fashioned from a single block. As it is taught in a baraita: The silver trumpets that Moses was commanded to fashion in the wilderness were to be fashioned from a complete block and from silver. If one fashioned them from fragments they are fit, but if he fashioned them from other types of metal then they are unfit. The Gemara asks: And what is different about trumpets made from other types of metal that they are rendered unfit? As it is written with regard to the trumpets: “Make for yourself two trumpets of silver; of beaten work you shall make them; and they shall be for you for the calling of the congregation” (Numbers 10:2). The verse employs the terms silver and being, indicating that it is an indispensable requirement. But accordingly, trumpets fashioned from fragments should be rendered unfit as well, since the verse employs the terms beaten work and being. The Gemara answers: The Merciful One excludes the trumpets when it states with regard to the Candelabrum: “It was beaten work” (Numbers 8:4), indicating that it alone, but not the trumpets, was beaten work.