History of this drawing

These drawings are based on the one on the left: aabx, aacb, aacn, aado, aae7, aaek, aaer, aaf8, aaff, aagc, aahv, aaia, aajt, aalb, aanf, aapa, aape, aaqn, aar7, aas4, aasz, aatr, aav1, aavm, aawo, aawz, aayo, ab16, ab1d, ab3d, ab3g, ab5o, ab8i, abaf, abbb, abf4, abhm, abhn, abkq, abkx, abne, abqa, abre, ac29, ac2a, ac2h, ac37, ac3s, ac49, ac5n, ac60, ac66, ac73, ac9u, acal, acay, acaz, acbz, accn, accw, acd3, acd6, aceb, acf0, acf3, acfw, acg2, acgb, ach5, achk, aci0, aci8, acia, acj4, acjw, acl9, acm1, acml, aco0, aco9, acpn, acps, acpy, acq7, acqc, acr9, acrs, acrx, acsb, acse, acsp, acss, act4, actf, actp, actr, acu6, acuk, acwa, acwp, acxh, acyu, aczb, aczr, ad03, ad0d, ad0w, ad1j, ad1q, ad22, ad2o, ad36, ad37, ad3m, ad3z, ad4y, ad5w, ad6k, ad79, ad7y, ad87, ad91, ada3, ada4, adah, adb7, adbu, adcg, adck, adco, ade3, adfe, adfz, adgg, adgl, adi2, adiq, adix, adly, admx, adnl, adoe, adpw, adrr, adsk, adt4, adum, advd, advw, adwa, adwn, adww, adxg, ady5, adzd, adzu, ae06, ae0n, ae1n, ae2i, ae3l, ae43, ae4w, ae6t, ae7c, aeau, aebl, aedq, aef9, aefm, aefx, aegc, aesw, afb9, aft1, aga5, agcd, agcy, agds, agfc, aggx, agi8, agiw, agj5, agma, agmx, agn7, ago0, agp9, agwc, agy6, agyd, agzw, ah0b, ah2i, ah3q, ah45, ah4g, ah5c, ah6b, ah6x, ah7m, ah8h, ah96, ahbg, ahc3, ahe0, ahf5, ahfq, ahgq, ahh3, ahhn, ahic, ahjr, ahko, ahm1, ahn3, ahot, ahpm, ahqf, ahra, ahs1, ahtz, ahwa, ahxv, ai02, ai1r, ai44, ai5p, ai6y, ai9h, aib6, aid9, aifq, aiie, aim0, ais7, aiwa, aiy4, aiz2, aj0n, aj2a, aj3j, aj4b, aj6m, aj8h, aj8p, aj8y, aj9c, aj9d, ajal, ajcr, ajdd, ajfa, ajgc, ajgj, ajgl, ajho, ajio, ajkj, ajl2, ajlo, ajm6, ajms, ajmu, ajnc, ajow, ajpd, ajpn, ajwg, ak01, ak76, ak94, ak9j, ak9n, ak9r, ak9z, akac, akag, akan, akb4, akba, akbb, akbn, akbz, akd7, akd9, akds, ake1, akgb, akgo, akgv, akgz, akhj, akhr, akiy, akkr, akmd, akmg, akmi, akms, akn2, akni, akns, akpg, akq2, akqb, akqy, akru, aksh, aku3, akuy, akv8, akvx, akwe, akww, akxp, akyn, akzi, al09, al0n, al15, al1o, al25, al2h, al55, al5g, al64, al6c, al6q, al7f, al7o, al7p, al7q, al8k, al98, al9y, alb7, albr, alcf, ald7, aldo, ale7, alf5, alff, alfl, aljb, alko, alok, alt2, alw3, alxd, am2t, am6f, am9c, ame2, ameo, amft, amhm, amj5, amkh, ammt, amoc, ampy, amqr, amqt, amsb, amuy, amvt, amvu, amw7, amxl, amzb, amzw, an2r, an3b, an3n, an4k, an6s, an99, an9o, an9x, ana1, anb7, anbb, anbh, anc7, anci, and4, andb, andp, anek, anff, anfp, ang5, angd, angf, angx, anha, anhs, anj4, anjh, ank2, ank4, ank5, ank6, ankj, anlq, anma, anmp, ann8, anuz, ao7f, aoh8, aohg, aok1, aomg, aon2, aoow, aoqd, aoqo, aorq, aosy, aou1, aovm, aoxo, aoyg, aoyt, aoz6, ap09, ap4u, ap6f, apat, apd4, apgr, apjg, apkx, apnj, app5, aps4, apww, apzx, aq0m, aq5w, aq6s, aq9e, aqb6, aqcf, aqdr, aqgg, aqkt, aqq9, aqu4, aqvk, aqw9, aqyf, aqzp, aqzv, ar31, ar63, ar70, ar81, ar9l, ard3, ardq, are9, areq, arfb, arih, arlt, arn0, aro5, arof, arpk, arqp, arsu, arv0, awl8, awla, axvp, axwj, axwn, axx2, axx8, axxn, axxu, axxz, axy2, axy9, axyf, axyr, axz8, axzo, axzx, ay02, ay09, ay0e, ay0i, ay0k, ay0p, ay10, ay17, ay1c, ay1d, ay1k, ay1q, ay1w, ay25, ay2g, ay2h, ay2r, ay31, ay37, ay3n, ay47, ay49, ay4e, ay4l, ay4s, ay4z, ay56, ay5b, ay5l, ay5t, ay5x, ay5y, ay62, ay6w, ay7e, ay7k, ay7q, ay8b, ay8s, ay9k, ay9v, ayad, ayar, ayb6, aybk, aybq, ayc2, aych, aycs, ayde, aydw, aye7, ayel, ayev, ayf8, ayfh, ayhb, ayht, ayin, ayjh, aykn, ayl9, aylj, ayme, aynh, ayo5, aypz, aytx, ayuy, ayv6, ayve, ayzq, ayzt, az0a, az0i, az0p, az0t, az17, az1p, az20, az26, az2l, az36, az3a, az3o, az4f, az4q, az4y, az5a, az5j, az62, az6f, az6n, az6z, az7b, az7l, az7p, az81, az82, az8b, az8s, az93, az9d, az9r, az9v, aza2, aza7, azac, azai, azar, azau, azaz, azb5, azbc, azbi, azbt, azbz, azc6, azcf, azcn, azea, azfm, azhd, azil, azju, azkv, azky, azl1, azl3, azl9, azlj, azlm, azlw, azm6, azma, azmg, azmj, azmk, azmu, azn9, azni, aznm, aznx, azo9, azof, azog, azoj, azop, azoy, azp4, azpb, azpp, azpt, azq6, azqo, azr5, azrc, azrp, azs0, azsj, aztl, aztz, azug, azup, azv4, azv9, azvi, azvr, azw1, azwd, azwr, azwz, b40v, b6ko.