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We report on the optical recovery of SN~1986E 7.1 and 7.9 years afterexplosion. The spectra are dominated by broad H$\alpha$ and [O~I]$\lambda\lambda$6300,6364 emission lines with a minor contribution from [Ca~II]$\lambda\lambda$7291,7324 and, possibly, [Fe~II] $\lambda$7155. Compared withthe spectra of the other recovered SNII, SN1986E shows strong H$\alpha$luminosity similar to SN~1979C but, in contrast, weak [O~III] emission. So far,among classified SNe, only type II Linears have been recovered a few years pastthe explosion. The high optical luminosity of Linear SNII at this phase is mostlikely related to the interaction of the ejecta with the circumstellar windwhich is also expected to produce strong radio emission. Therefore radioobservations of the remnant of SN~1986E are worth attempting. The circumstellarinteraction model predicts that, in the next decade, the strength of the[O~III]/H$\alpha$ emission rapidly increases and [O~III]$\lambda\lambda$4959,5007 should eventually dominate the spectrum. We observedthis effect in SN~1957D 30 years after explosion which therefore may representthe normal evolution of SNII with a dense circumstellar medium. The detailsobserved in the spectra of both SNe suggest directions for further refinementof the modelling.Comment: 7 pages postscript file in a self-unpacking uuencoded file. 4 figures  included. Previous was corrupte

SN 1986E eight years after outburst: a link to SN 1957D?