Same as Fig. 4, but for IRAS post-AGB star and PN candidates whose near-IR counterparts are not detected or unambiguously detected. When two near-IR counterparts are possible, these are overlaid as “A” and “B” on the image and the JHK photometry of both sources listed in Table 7 are shown in their corresponding SED. When no unambiguous near-IR counterpart can be selected, the respective ellipse and circle errors of the IRAS and MSX coordinates are overlaid on the image. As for IRAS   18529 + 0210, the accurate location of the Spitzer counterpart is marked on the figure and the JHK photometry upper limits are shown on its SED. The field of view of the images is 1′. North is top, east is left.