Reference for Menachot 188:7
כמאן אזלא הא דאמר ר' יהודה הלחם מעמיד את הסניפין והסניפין מעמידין את הלחם כמאן דאמר כמין ספינה רוקדת
but according to him who says 'like a broken box', what need was there for props? - [For otherwise] they might break by reason of the pressure of the [upper] cakes.<span class="x" onmousemove="('comment',' The props thus strengthened the sides of each cake to withstand the pressure of the cakes above it.');"><sup>13</sup></span> Again according to him who says 'like a ship's keel', it is clear that the props rested on the table,<span class="x" onmousemove="('comment',' Since the cakes were v-shaped there were obviously spaces underneath the sides of each cake; accordingly the bracket under the lowest cake rested on the Fig. 1 table, v. Fig. 1.');"><sup>14</sup></span> but according to him who says 'like a broken box', where were the props placed?<span class="x" onmousemove="('comment',' As the sides of the cakes a=props: b=cakes: c=rods. were flush with the edge of the table there was no room on the table for the props.');"><sup>15</sup></span> Were they perhaps placed on the ground? - Yes. for R'Abba B'Memel said, According to him who says 'like a ship's keel', the props stood on the table, and according to him who says 'like a broken box', they stood on the ground.<span class="x" onmousemove="('comment',' Fig. 2 illustrates the arrangement of a row of the Shewbread according to the view that the cakes were fashioned in the shape of a box broken at two sides; Fig. 1 illustrates the arrangement according to the view that they were in the shape of a ship's keel, v-shaped.');"><sup>16</sup></span> With which view agrees the statement of R'Judah that the cakes held up the props and the props held up the cakes? With the view [that the cakes were] like a ship's keel.<span class="x" onmousemove="('comment',' For the curved sides of the cakes lay on the brackets and held them firm, whilst the brackets and props supported the cakes.');"><sup>17</sup></span>